Table of Contents
Advertisement
Slight hand pressure against wheel rim will lift the wheel's weight
from the inner race of the bearing to assist bearing removal and in-
stallation. If not removable by hand, use a bearing puller.
4.
Using a wrench, remove the diameter seal retaining screws
(25 to 68-in. cassettes). Remove diameter seals (25 to 68-in.
cassettes) from the bearing beam.
CAUTION
Protect hands and belt from possible sharp edges of hole in
bearing support beam.
5.
Form a small loop of belt and pass it through the hole in the
bearing support beam. Grasp the belt at the wheel hub and
pull the entire belt down. Loop the trailing end of the belt
over the shaft (Fig. 189 shows the solid belt partially through
the opening).
6.
Reinstall the bearing onto the wheel shaft, being careful to
engage the two locating pins into the holes in the bearing sup-
port beam. Secure the bearing with the two self-locking nuts.
7.
Install the belts around the wheel and pulley according to the
instructions provided with the belt.
8.
Reinstall the diameter seals and tighten the retaining screws
(see Adjusting Air Seals on page 213 for seal adjustment).
Rotate the wheel clockwise to determine that it rotates freely
with slight drag on the seals.
9.
Reinstall the bearing locking collar. Rotate the collar by hand
in the direction the wheel rotates (see label provided on each
cassette for wheel rotation). Lock the collar in position by
tapping the drift pin hole with a hammer and drift. Secure in
position by tightening the set screw.
10. Reinstall the bearing access cover.
11. Apply power to the wheel motor and ensure that the wheel
rotates freely without interference.
Fig. 188 — Pulley Location
LOCKING
COLLAR
LOCKING
NUTS (2)
BEARING
ACCESS PLATE
BEARING
HOUSING
SET
SCREW
DRIFT PIN
HOLE
LOCATING PIN
FEED
BELT
Fig. 189 — Solid Belt Replacement
LINK BELT REPLACEMENT
Before performing service or maintenance operations on unit,
turn off main power switch to unit. Electrical shock could
cause personal injury.
1. Confirm the model number on the replacement belt kit
matches the model number on the energy recovery cas-
sette label.
2. Remove any remnant of old belt from cassette.
3. At location near pulley, attach the hook end of belt to
wheel rim with tape, making sure that narrow side of "V"
belt is positioned against rim and link is covered by the
tape (see Fig. 190).
4. Rotate the wheel clockwise while feeding belt onto wheel
rim (be careful not to twist belt) until taped end returns to
pulley location. Remove tape from wheel.
5. Link belt ends together with belt wrapped around wheel
(Fig. 191).
6. Rotate wheel clockwise to position connector approxi-
mately 180 degrees from pulley location.
7. At pulley location, insert the right angle belt retaining clip
near spoke and between segment retainer latch and wheel
rim as shown in Fig. 192.
IMPORTANT: To avoid release of segment retainer latch,
do not insert retaining clip on other side of spoke.
215
BELT (SHOWN
IN PLACE)
BEARING
WHEEL RIM
SUPPORT
BEAM
WHEEL
HUB (2)
TAPER-LOCK
HUB COLLAR (2)
SHAFT
PULL
PULLEY
MOTOR
a39-2387
SIDE
SIDE
WARNING
Advertisement
Table of Contents
